En canales revestidos de fuerte pendiente se presentar velocidades flujo tan altas, que es necesario modificar su rugosidad para disminuirlas. este trabajo presenta un procedimiento determinar el grado confianza puede esperarse uno los criterios disponibles diseño rugosidades artificiales fondo altas en revestidos. Con base teorema Buckingham proponen expresiones llevar a cabo mencionado. Se de...

Electromechanical and photonic properties of semiconducting nanowires depend on their strain states and are limited by their extent of deformation. A fundamental understanding of the mechanical response of individual nanowires is therefore essential to assess system reliability and to define the design space of future nanowire-based devices. Here we perform a large-scale density functional theo...

The structural and topological properties of soda-lime silicate glasses of the form (1-2x)SiO2-xNa2O-xCaO are studied from classical molecular dynamics using a Buckingham type potential. Focus is made on three compositions (x = 6%, 12%, and 18%) which are either silica-rich or modifier-rich. We compare the results to available experimental measurements on structural properties and find that the...

A dimensional analysis of the ball mill process is carried out through Buckingham-Pi method. The dimensionless quantities identified are discussed and used in order to suggest scaling criteria for mills. flowability particle size distribution an alumina powder ground laboratory mills various dimensions compared discuss influence relevance each numbers. Some geometrical, kinetics dynamic similit...

The not so innocuous question of “where are you really from?” is a racial microaggression, grounded on faux ignorance and innocence, placing the white aggressor in place victim, when challenged. Microaggression only found at Buckingham Palace receptions, but everywhere: job interviews, bus stops, pubs staff rooms. What it contains belief that people global majority “owe” people, who see themsel...